Factory-Built Buildings Permits
Factory-Built Buildings Permits
Apply for a Factory-Built Building Permit
Apply Online
Online Factory-Built Building Permit
Print Paper Applications
Factory-Built Building Application
Insignia Application
Third Party Inspector Certification Form
About Factory-Built Building (FBB)
Please read below regarding permit requirements before applying. If you have questions about the process, please
email
the Factory Built Building Program or call (406) 841-2056.
Factory-Built Building (FBB)
is a factory assembled structure(s) equipped with the necessary service connections and designed to be used with a permanent foundation.
No person(s) can sell or offer for sale within Montana any factory-built building(s) unless the unit(s) and its components, systems, and appliances have been constructed and assembled in accordance with the standards as defined in
Title 50, Chapter 60
of the Montana Codes Annotated. Manufacturers approved to sell or offer for sale factory built buildings can be found on the
list of approved FBB manufacturers.
All units manufactured or delivered prior to sale, sold, or offered for sale need a factory-built building insignia and, if applicable, the insignia of a reciprocal state or the certified third party inspection agency.
Factory-built buildings shall meet the requirements of the latest adopted editions of the model codes.
The requirements listed in
50-60-402(1),
MCA, apply to all new factory-built units, whether offered for sale, lease or rent, which are first utilized in the State of Montana, regardless of the unit's point of origin or route of delivery.
Factory-Built Building
(FBB) means a factory assembled structure or structures equipped with the necessary service connections but not made so as to be readily movable as a unit or units and designed to be used with a permanent foundation.
Third Party Certification and Inspection Agency
1/28/26
Means an agency, which inspects and certifies, in lieu of state inspectors, that an FBB conforms to the requirements and standards set forth in Title 50, Chapter 60, Montana Codes Annotated and Title 24, Chapter 301, Administrative Rules of Montana.  Visit the Bureau’s Website at
www.buildingcodes.mt.gov
. for all current codes.  A Third Party Inspection Agency is not under the control or jurisdiction of any supplier, manufacturer or dealer, except by contractor for quality control and/or inspections of FBB units.
Currently approved 3rd Party Inspection Agencies are listed below.
Business Name
Address
City
State
Zip
Phone
ACTION BUILDING INSPECTION
10056 S SILVER STREAK DRIVE
SOUTH JORDAN
UT
84095
(801) 254-0817
BUILDING CODE SOLUTION
11757 S SUN TEA WAY
SOUTH JORDAN
UT
54009
(801) 403-8152
ICC NTA, LLC
305 N OAKLAND AVE, PO BOX 490
NAPPANEE
IN
(574) 773-7975
INTERTEK
1500 BIGANTINE DRIVE
COQUITLAM
BC
V3K 7C1
(604) 528-8715
MINNESOTA DEPT OF LABOR & INDUSTRY
443 LAFAYETTE RD N
ST PAUL
MN
55155
(651) 284-5894
ON THE LEVEL INSPECTIONS
PO BOX 418
MANZANITA
OR
97130
(503) 871-5570
PFS-TECO
1507 MATT PASS
COTTAGE GROVE
WI
53527
(608) 839-1013
PROFESSIONAL SERVICES INDUSTRIES-INTERTEK
1748 33RD STREET
ORLANDO
FL
32839
(407) 304-5560
PYRAMID 1, INC
19260 COUNTY RD 46 | PO BOX 463
NEW PARIS
IN
46553
(574) 831- 4200
RADCO
18071 MOUNT WASHINGTON ST., UNIT A
FOUNTAIN VALLEY
CA
92708
(562)272-7231
STATE OF COLORADO DIVISION OF HOUSING
1313 SHERMAN ST, ROOM 320
DENVER
CO
80203
(303) 864-7836
STATE OF IDAHO DIVISION OF BUILDING SAFETY
1090 E WATERTOWER ST, SUITE 150
MERIDIAN
ID
83642-3556
(208) 839-9239
STATE OF NEBRASKA
300 THE ATRIUM, 1200 N ST
LINCOLN
NE
68508
(402) 471-0024
STATE OF WASHINGTON
PO BOX 44430
OLYMPIA
WA
98501
(360) 902-5218
T.R. ARNOLD & ASSOCIATES INC
4703 CHESTER DR
ELKHART
IN
46516
(574) 902-5218
UL LLC
333 PFINGSTON ROAD
NORTHBROOK
IL
60062
(657) 286-8447
VINSON INSPECTION SERVICES, INC.
4494 W 8790 S
WEST JORDAN
UT
84088
(801) 897-7485
Typical Structural Design Approval ...
A manufacturer of a factory-built building may make application for a
typical structural design approval
prior to construction.  The following general requirements must be met:
Dimensioned drawings and specifications are required and they must clearly indicate the nature and extent of the work proposed.
An electronic copy of all documents submitted for approval are required, or one paper copy not less than 8 ½” x 11” and not more than 11" x 17'.
Fees must be paid as required by ARM 24.301.565 through 24.301.567.
The following specific requirements must be met:
All necessary cross sections;
Floor, wall ceiling and roof construction details;
Typical connections;
Design live and dead loads;
Grade and quality of materials;
Substantiating calculations or test results, where required.
A manufacturer of a factory-built building may make applications for approval of typical electrical, mechanical and plumbing equipment and installations prior to construction, which may be referenced on subsequent plans. The following letters will be used to designate typical systems: E, M, P.
Electrical Specifications
The following
electrical specifications
must be set forth in the plan:
Type and size of feeder assembly;
Voltage and amperage of branch circuit panel board;
Branch circuit identification, amperage or over current protection device wire size and type;
Voltage and amperage of fixed appliances;
Calculations according to NFPA 70.
Mechanical Information
The plan may be drawn to scale or schematic.  It must set forth the following
mechanical information
Description of all materials, appliances, fittings, pipe, tubing, vents and ducts.
BTUH input rating of all fuel burning appliances;
Size of openings for combustion air, except where combustible air is an integral part of an approved appliance;
Size, length, type and location of vents and vent connectors;
Type, minimum dimension and gauge of air ducts;
Minimum free area and location of circulating air supply inlet;
Minimum free area and location of all air openings.
Plumbing Specifications
The plan may be drawn to scale or schematic.  It must set forth the following
plumbing specifications
Description of all materials, fixtures, fittings, pipe tubing, shower stalls and walls;
Diameter and type of pipe and tubing, and length of all trap arms;
Size and type of fittings;
Grade of drainage piping;
Method of securing all piping.
Quality Control Manual
The manufacturer shall submit a manual, or shall reference an applicable manual previously reviewed by the Bureau, outlining a program of quality control concurrent with a request for plan review. The program outlined must meet the standards of and be reviewed by the Bureau.  In addition, the manufacturer shall designate a company or corporate officer or other responsible person to be responsible for the quality control program, and shall maintain records to substantiate that each unit has been inspected and complies with the plans as reviewed by the Bureau.  The Bureau may make periodic inspections and may condition the issuance of insignia on compliance with Administrative Rules by the manufacturer.
The following specific information is required for the quality control manual:
Scope and purpose of the manual;
Inspection procedure for basic materials;
Material storage and stock rotation procedure;
Drawings and bill of material;
Types and frequency of product inspection;
Sample of inspection control form used;
Record-keeping procedures for quality control forms;
List of major pieces of production equipment;
Where responsibility for quality control program lies;
Test procedural manual, including electrical, gas line, water systems and drain/vent/plumbing fixture tests and type of test equipment used;
List of test equipment.
All units manufactured or delivered prior to sale or sold or offered for sale in this state shall bear a Factory-Built Building Insignia issued by the State of Montana.
Plan Renewal
The manufacturer shall make application to have their plans renewed for the following year prior to the December 31 expiration date of each.  At the time of renewal, plans which have not be changed do not require the re-submission of plans. If any changes have been made, an updated plan must be submitted.  The application shall be accompanied by the renewal fee.
Department of Labor & Industry
Privacy & Security
Services
Agencies
Official Montana State Website
Contact Information
Physical Address
301 South Park Ave.
Floors 4 and 5
Helena, MT 59620
Building and Commercial Measurements Bureau
P.O. Box 200517
Helena, MT 59602
Phone: (406) 841-2056
Fax: (406) 841-2050
Email Us
Professional Licensing Bureau
P.O. Box 200513
Helena, MT 59620
Phone: (406) 444-6880
Email Us
Weights and Measures
P.O. Box 200516
Helena, MT 59620
Phone: (406) 841-2056
Fax: (406) 841-2050
Email Us
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